add: App Readarr

apps/readarr/config.json

@@ -0,0 +1,13 @@
+{
+  "name": "Readarr",
+  "available": true,
+  "port": 8112,
+  "id": "readarr",
+  "categories": ["books", "media"],
+  "description": "",
+  "short_desc": "Book Manager and Automation (Sonarr for Ebooks)",
+  "author": "readarr.com",
+  "source": "https://github.com/Readarr/Readarr",
+  "image": "/logos/apps/readarr.jpg",
+  "form_fields": []
+}

apps/readarr/docker-compose.yml

@@ -0,0 +1,20 @@
+version: "3.9"
+services:
+  readarr:
+    image: lscr.io/linuxserver/readarr:develop
+    container_name: readarr
+    environment:
+      - PUID=1000
+      - PGID=1000
+      - TZ=${TZ}
+    dns:
+      - ${DNS_IP}
+    volumes:
+      - /etc/localtime:/etc/localtime:ro
+      - ${APP_DATA_DIR}/data:/config
+      - ${ROOT_FOLDER_HOST}/media:/media
+    ports:
+      - ${APP_PORT}:8787
+    restart: unless-stopped
+    networks:
+      - tipi_main_network

apps/readarr/metadata/description.md

@@ -0,0 +1,22 @@
+Readarr is an ebook and audiobook collection manager for Usenet and BitTorrent users. It can monitor multiple RSS feeds for new books from your favorite authors and will grab, sort, and rename them.
+Note that only one type of a given book is supported. If you want both an audiobook and ebook of a given book you will need multiple instances.
+
+## Major Features Include
+
+* Can watch for better quality of the ebooks and audiobooks you have and do an automatic upgrade. *e.g. from PDF to AZW3*
+* Support for major platforms: Windows, Linux, macOS, Raspberry Pi, etc.
+* Automatically detects new books
+* Can scan your existing library and download any missing books
+* Automatic failed download handling will try another release if one fails
+* Manual search so you can pick any release or to see why a release was not downloaded automatically
+* Advanced customization for profiles, such that Readarr will always download the copy you want
+* Fully configurable book renaming
+* SABnzbd, NZBGet, QBittorrent, Deluge, rTorrent, Transmission, uTorrent, and other download clients are supported and integrated
+* Full integration with Calibre (add to library, conversion) (Requires Calibre Content Server)
+* And a beautiful UI
+
+## Support
+
+[![Wiki](https://img.shields.io/badge/servarr-wiki-181717.svg?maxAge=60)](https://wiki.servarr.com/readarr)
+[![Discord](https://img.shields.io/badge/discord-chat-7289DA.svg?maxAge=60)](https://readarr.com/discord)
+[![Reddit](https://img.shields.io/badge/reddit-discussion-FF4500.svg?maxAge=60)](https://www.reddit.com/r/readarr)